Set size is 13 containers with lids: 1 small (220 ml) round container, 1 medium (385 ml) round container, 1 medium (650 ml) round container, 1 large (975 ml) round container, 1 small (170 ml) square container, 1 medium (310 ml) square container, 1 medium (535 ml) square container, 1 large (800 ml) square container, 1 small (190 ml) rectangular container, 1 small (370 ml) rectangular container, 1 medium (630 ml) rectangular container, 1 large (965 ml) rectangular container, 1 large (1510 ml) rectangular container. Container closures use clamps with a removable flexible gasket.